Don't do renovations with this company

I did my renovations with this company. My contract had a 5 year warranty on building structure. Five year arrived. I had to make calls after calls after calls, for them to come and fix building structure. Finally arrived. When they arrived poor work was done and they didn't finish. Promised to come back, never came back. I tried to reach out to them many times and finally they stopped taking my calls. It's two years now and I've never heard anything from them. Unreliable unreliable unreliable. They don't keep up to their words.